23993427747 has 16 divisors (see below), whose sum is σ = 32520774528. Its totient is φ = 15733011840.

The previous prime is 23993427659. The next prime is 23993427781. The reversal of 23993427747 is 74772439932.

It is a happy number.

It is not a de Polignac number, because 23993427747 - 2²⁶ = 23926318883 is a prime.

It is not an unprimeable number, because it can be changed into a prime (23993427797) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 225733 + ... + 314550.

It is an arithmetic number, because the mean of its divisors is an integer number (2032548408).

Almost surely, 2^23993427747 is an apocalyptic number.

23993427747 is a deficient number, since it is larger than the sum of its proper divisors (8527346781).

23993427747 is a wasteful number, since it uses less digits than its factorization.

23993427747 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 540530.

The product of its digits is 16003008, while the sum is 57.

The spelling of 23993427747 in words is "twenty-three billion, nine hundred ninety-three million, four hundred twenty-seven thousand, seven hundred forty-seven".